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xxMikexx [17]
3 years ago
6

What is the variance of the following data? If necessary, round your answer to two decimal places 600,470,170,430,300

Mathematics
1 answer:
Mkey [24]3 years ago
3 0

Answer:

72112885110079700000000000000.00

Step-by-step explanation:

X(mean) = (600470170430300 + 23056 + 22123 + 21704 + 20365) / 5 = 120094034103510

n=5

S²(variance) = ((600470170430300-120094034103510)²+(23056-120094034103510)²+(22123-120094034103510)²*+(21704-120094034103510)²+(20365-120094034103510)²/(5-1)

S² = 72112885110079700000000000000.00

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Solve (16×^3-3×^2+43×-5)÷(×^2-2)
Oksana_A [137]

Answer:

3872/(x^2 - 2)

Step-by-step explanation:

Simplify the following:

(16^3 - 3^2 - 5×43)/(x^2 - 2)

3^2 = 9:

(16^3 - 9 - 5×43)/(x^2 - 2)

16^3 = 16×16^2:

(16×16^2 - 9 - 5×43)/(x^2 - 2)

| 1 | 6

× | 1 | 6

| 9 | 6

1 | 6 | 0

2 | 5 | 6:

(16×256 - 9 - 5×43)/(x^2 - 2)

16×256 = 4096:

(4096 - 9 - 5×43)/(x^2 - 2)

43 (-5) = -215:

(4096 - 9 + -215)/(x^2 - 2)

4096 - 9 - 215 = 3872:

Answer: 3872/(x^2 - 2)

7 0
3 years ago
What is the measure of the indicated angle 103° ?
Elina [12.6K]

Answer:

77 degrees.

Step-by-step explanation:

180-103=77

4 0
3 years ago
Read 2 more answers
Increase £139 by 28%<br> Give your answer rounded to 2 DP
Elis [28]

Answer:

£177.92

Step-by-step explanation:

To increase something by 28% would be to multiply the original value by 1.28:

So to increase £139 by 28%, we do:

£139 × 1.28 = £177.92

So this is our final answer

4 0
2 years ago
Kameron walks 3 miles in 18 minutes.how many can kameron walk in 120 minutes
Pani-rosa [81]

Answer:

20

Step-by-step explanation:

start by dividing 18 from 120(to find the amount of 18's in 120)

120 / 18 = 6.<u>6</u>

meaning there are 6.<u>6</u> sets of 18 in 120

multiply 3 by 6.<u>6</u>(since there's 3 miles for every 18 minutes)

3 x 6.<u>6</u> = 20

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3 years ago
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